JP2015130276A - Shielded wire - Google Patents

Shielded wire Download PDF

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JP2015130276A
JP2015130276A JP2014001341A JP2014001341A JP2015130276A JP 2015130276 A JP2015130276 A JP 2015130276A JP 2014001341 A JP2014001341 A JP 2014001341A JP 2014001341 A JP2014001341 A JP 2014001341A JP 2015130276 A JP2015130276 A JP 2015130276A
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sheet
edge
electric wire
metal foil
wire
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剛之 大村
Takayuki Omura
剛之 大村
聡 吉永
Satoshi Yoshinaga
聡 吉永
好彦 佐藤
Yoshihiko Sato
好彦 佐藤
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Yazaki Corp
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Yazaki Corp
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Priority to JP2014001341A priority Critical patent/JP2015130276A/en
Priority to PCT/JP2015/050402 priority patent/WO2015105158A1/en
Publication of JP2015130276A publication Critical patent/JP2015130276A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H01B11/10—Screens specially adapted for reducing interference from external sources
    • H01B11/1091—Screens specially adapted for reducing interference from external sources with screen grounding means, e.g. drain wires

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  • Insulated Conductors (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a shielded wire excellent in waterproof performance.SOLUTION: A shielded wire 1 includes a plurality of electric wires 2 and 3, a metal foil material 4 as a shield member forming a shield layer covering the periphery of the plurality of electric wires 2 and 3, a sheet-like member 5 covering the periphery of the metal foil material 4, and a protective tape 6 as a protective member spirally wound around the sheet-like member 5. The sheet-like member 5 is wound around the metal foil material 4 in a state of being longitudinally attached to the metal foil material 4, and side edges 5a on both sides which extend in the axial direction are bonded together at their inner surfaces.

Description

本発明は、シールド電線に関する。   The present invention relates to a shielded electric wire.

自動車内の電気配線では、ノイズの影響を受け易いあるいはノイズを発生し易い機器への配線には、信号の伝送等を行う電線の周囲にシールド層（電磁波遮蔽層）を備えたシールド電線が使用される。   In electrical wiring in automobiles, shielded wires with a shield layer (electromagnetic wave shielding layer) around the wires used for signal transmission are used for wiring to devices that are susceptible to noise or generate noise. Is done.

例えば特許文献１には、少なくとも１本の電線とドレイン線とからなる複数の電線と、これら複数の電線を覆う導電シートと、保護テープとで構成されるシールド電線が開示されている。導電シートは、電線に電磁波シールド性を付与するものである。導電シートは、長尺帯状となっており、電線に縦添えされた状態で当該電線に巻き付けられており、長手方向に沿った両側の辺縁部同士が上下に重ね合わせられている。また、保護テープは、長尺状のテープであり、導電シートの外周に螺旋状に巻き付けられている。   For example, Patent Document 1 discloses a shielded electric wire including a plurality of electric wires including at least one electric wire and a drain wire, a conductive sheet covering the plurality of electric wires, and a protective tape. The conductive sheet imparts electromagnetic wave shielding properties to the electric wire. The conductive sheet has a long band shape, and is wound around the electric wire in a state of being vertically attached to the electric wire, and the edge portions on both sides along the longitudinal direction are vertically overlapped. The protective tape is a long tape and is wound around the outer periphery of the conductive sheet in a spiral shape.

また、このようなシールド機能を持つ部材としてはシート状の部材以外にも、電線の外周に螺旋状に巻き付けるようなテープ状のものも知られている（例えば特許文献２，３参照）。   In addition to the sheet-like member, a tape-like member that is spirally wound around the outer periphery of the electric wire is also known as a member having such a shielding function (see, for example, Patent Documents 2 and 3).

特開２０１３−４３５４号公報JP 2013-4354 A 特開２００７−２７０５０号公報JP 2007-27050 A 特開２０１１−２２２２６２号公報JP 2011-222262 A

例えばエンジンルーム等の環境にシールド電線が配索された場合、当該シールド電線は雨水に曝される可能性がある。従来のシールド電線では、保護テープの重ね合わせ箇所から内部へと水が進入した場合に、シールド部材を構成する金属層に腐食が起こり、シールド性能を低下させる可能性がある。このように、従来のシールド電線では防水対策が十分になされていないという問題があった。このため、エンジンルーム等のように水等を被る可能性がある環境ではシールド電線を使用することができないという不都合があった。   For example, when a shielded cable is routed in an environment such as an engine room, the shielded cable may be exposed to rainwater. In the conventional shielded electric wire, when water enters from the overlapped portion of the protective tape to the inside, corrosion may occur in the metal layer constituting the shield member, and the shield performance may be deteriorated. As described above, the conventional shielded electric wire has a problem that waterproofing measures are not sufficiently taken. For this reason, there existed a problem that a shielded electric wire could not be used in the environment which may receive water etc. like an engine room.

本発明はかかる事情に鑑みてなされたものであり、その目的は、防水性能に優れるシールド電線を提供することにある。   This invention is made | formed in view of this situation, The objective is to provide the shielded electric wire which is excellent in waterproof performance.

かかる課題を解決するために、本発明は、電線と、電線の周囲を覆うシールド層を形成するシールド部材と、シールド部材の周囲を覆うシート状部材と、シート状部材の周囲に螺旋状に巻き付けられる保護部材と、を有するシールド電線を提供する。この場合、シート状部材はシールド部材に縦添えされた状態で当該シールド部材の周囲に巻き付けられており、軸方向に延在する一対の辺縁部が内面同士で接合されている。   In order to solve this problem, the present invention provides a wire, a shield member that forms a shield layer that covers the periphery of the wire, a sheet-like member that covers the periphery of the shield member, and a spiral wound around the periphery of the sheet-like member A shielded wire having a protective member. In this case, the sheet-like member is wound around the shield member while being vertically attached to the shield member, and a pair of edge portions extending in the axial direction are joined to each other at the inner surfaces.

本発明において、一対の辺縁部は、一方の辺縁部の幅が他方の辺縁部の幅よりも大きく設定されており、他方の辺縁部が幅方向にオフセットした位置にて一方の辺縁部と内面同士で接合されるとともに、当該一方の辺縁部の延出した部位が折り返されて他方の辺縁部の外面と接合されていることが好ましい。   In the present invention, the pair of side edges are set such that the width of one side edge is set larger than the width of the other side edge, and the other side edge is offset in the width direction. It is preferable that the edge portion and the inner surface are joined to each other, and the extended portion of the one edge portion is folded and joined to the outer surface of the other edge portion.

また、本発明において、一対の辺縁部は、一方の辺縁部の幅が他方の辺縁部の幅よりも大きく設定されており、他方の辺縁部が幅方向にオフセットした位置にて一方の辺縁部と内面同士で接合されるとともに、内面同士が相互に接合された一対の辺縁部は、シート状部材の胴体部に沿うように折り曲げられ、一方の辺縁部の延出した部位がシート状部材の胴体部に接合されることが望ましい。   In the present invention, the pair of side edges are set such that the width of one side edge is set larger than the width of the other side edge, and the other side edge is offset in the width direction. A pair of edge portions joined together at one edge portion and the inner surface, and the inner surfaces joined together are bent along the body portion of the sheet-like member, and the one edge portion is extended. It is desirable that the processed part is joined to the body part of the sheet-like member.

また、本発明において、電線は、それぞれが撚り合わされた複数の被覆電線と、複数の被覆電線に縦添えされたドレイン線とを含むことが好ましい。   Moreover, in this invention, it is preferable that an electric wire contains the some covered electric wire by which each was twisted together, and the drain wire vertically attached to the some covered electric wire.

本発明によれば、シールド部材の上にシート状部材を介在させているので気密性を確保することができる。また、このシート状部材の上から保護テープを螺旋状に巻き付けることで、シート状部材の気密性をよりサポートすることができる。これより、シールド部材への水の進入を防止することができ、防水性能に優れるシールド電線を提供することができる。   According to the present invention, since the sheet-like member is interposed on the shield member, airtightness can be ensured. Moreover, the airtightness of a sheet-like member can be supported more by winding a protective tape helically on this sheet-like member. As a result, it is possible to prevent the water from entering the shield member, and to provide a shielded electric wire excellent in waterproof performance.

第１実施形態に係るシールド電線を示す斜視図The perspective view which shows the shielded electric wire which concerns on 1st Embodiment 第１実施形態に係るシールド電線の構成態様を模式的に示す説明図Explanatory drawing which shows typically the structural aspect of the shielded electric wire which concerns on 1st Embodiment. 第２実施形態に係るシールド電線の構成態様を模式的に示す説明図Explanatory drawing which shows typically the structural aspect of the shielded electric wire which concerns on 2nd Embodiment. 第３実施形態に係るシールド電線の構成態様を模式的に示す説明図Explanatory drawing which shows typically the structural aspect of the shielded electric wire which concerns on 3rd Embodiment.

（第１の実施形態）
図１は、本実施形態に係るシールド電線１を示す斜視図である。本実施形態に係るシールド電線１は、複数（本実施形態では３本）の被覆電線２と、ドレイン線３と、金属箔材４と、シート状部材５と、外装テープ６とで構成されている。 (First embodiment)
FIG. 1 is a perspective view showing a shielded electric wire 1 according to the present embodiment. The shielded electric wire 1 according to this embodiment is composed of a plurality (three in this embodiment) of covered electric wires 2, drain wires 3, metal foil material 4, sheet-like member 5, and exterior tape 6. Yes.

被覆電線２は、芯線（導体）の周囲を絶縁被覆で覆ったものであり、シールド層を有していない。本実施形態において、３本の被覆電線２は、所定の撚りピッチで撚り合わされており、一つの電線束に纏められている。   The covered electric wire 2 is obtained by covering the periphery of a core wire (conductor) with an insulating coating and does not have a shield layer. In the present embodiment, the three covered electric wires 2 are twisted together at a predetermined twist pitch, and are bundled into one electric wire bundle.

ドレイン線３は、被覆電線２の芯線と略同一断面積の裸電線であり、長さが被覆電線２と略同一に設定されている。ドレイン線３は、３つの被覆電線２に縦添えされている。すなわち、ドレイン線３は、電線の軸方向に沿って３つの被覆電線２と束ねられている。   The drain wire 3 is a bare wire having substantially the same cross-sectional area as the core wire of the covered wire 2, and the length is set to be substantially the same as that of the covered wire 2. The drain wire 3 is vertically attached to the three covered electric wires 2. That is, the drain wire 3 is bundled with the three covered electric wires 2 along the axial direction of the electric wires.

各被覆電線２の端部、及びドレイン線３の端部には、それぞれ接続端子（図示せず）が接続されている。ドレイン線３は、各被覆電線２の端部側に位置する機器等の接地部に接地接続される。   Connection terminals (not shown) are connected to the end portions of the respective covered electric wires 2 and the end portions of the drain wires 3. The drain wire 3 is grounded and connected to a grounding portion of equipment or the like located on the end side of each covered electric wire 2.

金属箔材４は、３つの被覆電線２及びドレイン線３の周囲を覆うシールド層を形成するシールド部材である。例えば金属箔材４は絶縁材料であるポリエチレンフィルムの片面に金属箔層（例えばアルミニウム箔層）を設けて構成されており、当該金属箔層はシールド層として機能する。金属箔材８は、金属箔層を内側に向けて、被覆電線２及びドレイン線３の外周に巻き付けられる。巻き付けられた金属箔材８は、金属箔層がドレイン線３に接触することにより、ドレイン線３に導通状態になる。また、３つの被覆電線２及びドレイン線３からなる電線束と、金属箔材４との間には、導電性接着剤（図示せず）が充填されており、金属箔層とドレイン線との導通状態の安定性が高められている。   The metal foil material 4 is a shield member that forms a shield layer covering the periphery of the three covered electric wires 2 and the drain wires 3. For example, the metal foil material 4 is configured by providing a metal foil layer (for example, an aluminum foil layer) on one side of a polyethylene film that is an insulating material, and the metal foil layer functions as a shield layer. The metal foil material 8 is wound around the outer periphery of the covered electric wire 2 and the drain wire 3 with the metal foil layer facing inward. The wound metal foil material 8 becomes conductive with the drain wire 3 when the metal foil layer contacts the drain wire 3. In addition, a conductive adhesive (not shown) is filled between the wire bundle composed of the three covered electric wires 2 and the drain wires 3 and the metal foil material 4, and the metal foil layer and the drain wires are connected to each other. The stability of the conduction state is enhanced.

シート状部材５は、金属箔材４の周囲を覆うものであり、防水性の観点から設けられている。シート状部材５は、３つの被覆電線２及びドレイン線３を周回できる程度の幅（電線軸方向と直交する方向の長さ）を備えて電線軸方向に長手となる長尺帯状に構成されており、金属箔材４に縦添えされた状態で当該金属箔材４の周囲に巻き付けられている。また、このシート状部材５は、電線の軸方向に延在する一対の辺縁部５ａが内面同士で接合されている。本実施形態では、シート状部材５の両側に位置付けられる一対の辺縁部５ａは同一幅に設定されており、それぞれの辺同士が揃った状態で接合されている。   The sheet-like member 5 covers the periphery of the metal foil material 4 and is provided from the viewpoint of waterproofness. The sheet-like member 5 has a width (a length in a direction orthogonal to the electric wire axial direction) that can circulate the three covered electric wires 2 and the drain wires 3 and is formed in a long band shape that is long in the electric wire axial direction. The metal foil material 4 is wound around the metal foil material 4 in a vertically attached state. In addition, the sheet-like member 5 has a pair of side edge portions 5a extending in the axial direction of the electric wire joined together at the inner surfaces. In this embodiment, a pair of edge part 5a located in the both sides of the sheet-like member 5 is set to the same width, and it joins in the state in which each edge | side was aligned.

シート状部材５は、水が浸透しづらい材質であることが好ましく、また、シート状部材５同士の接着や金属箔材４との気密性を確保できることが好ましい。このようなシート状部材５としては、例えばその素材としてシリコン等の樹脂を挙げることができ、当該シート素材の内面に粘着層を形成した粘着テープ又は粘着シートなどを用いることができる。すなわち、本実施形態では、両側の辺縁部５ａは接着にて内面同士が接合されることとなる。   The sheet-like member 5 is preferably made of a material that is difficult for water to permeate, and it is preferable that adhesion between the sheet-like members 5 and airtightness with the metal foil material 4 can be secured. As such a sheet-like member 5, for example, a resin such as silicon can be used as the material, and an adhesive tape or an adhesive sheet in which an adhesive layer is formed on the inner surface of the sheet material can be used. That is, in this embodiment, the inner surfaces of the edge portions 5a on both sides are joined by bonding.

保護テープ６は、長尺上のテープであり、導電シートの外周に螺旋状に巻き付けられている。保護テープ６としては、テープ素材の内面に粘着層を形成した粘着テープなどを利用することができる。   The protective tape 6 is a long tape and is spirally wound around the outer periphery of the conductive sheet. As the protective tape 6, an adhesive tape having an adhesive layer formed on the inner surface of the tape material can be used.

以下、図２を参照し、本実施形態に係るシールド電線１の製造方法を説明する。まず、３本の被覆電線２と、１本のドレイン線３とを用意する。３本の被覆電線２を所定の撚りピッチで撚り合わさることで、一つの電線束を作成し、これらの被覆電線２にドレイン線３を縦添えする。   Hereinafter, with reference to FIG. 2, the manufacturing method of the shielded electric wire 1 which concerns on this embodiment is demonstrated. First, three covered electric wires 2 and one drain wire 3 are prepared. By twisting the three covered electric wires 2 at a predetermined twist pitch, one electric wire bundle is created, and the drain wires 3 are vertically attached to these covered electric wires 2.

つぎに、金属箔材４を用意し、金属箔層を内側に向けた状態において金属箔材４を被覆電線２及びドレイン線３の外周に巻き付ける。この金属箔材４は、長手方向に沿った両側の辺縁部同士が上下に重なるように巻き付けられる。   Next, the metal foil material 4 is prepared, and the metal foil material 4 is wound around the outer circumferences of the covered electric wire 2 and the drain wire 3 in a state where the metal foil layer faces inward. The metal foil material 4 is wound so that the edge portions on both sides along the longitudinal direction overlap each other.

そして、シート状部材５を金属箔材４に縦添えして当該金属箔材４の周囲に巻き付けるとともに、電線軸方向に延在する一対の辺縁部５ａを内面同士で接着させる。   Then, the sheet-like member 5 is vertically attached to the metal foil material 4 and wound around the metal foil material 4, and a pair of edge portions 5a extending in the electric wire axial direction are bonded to each other on the inner surfaces.

つぎに、内面同士が接着された辺縁部５ａは立ち上げられた状態となっていることから、これを電線胴面（シート状部材５の外面）に沿うように折り曲げる。そして、シート状部材５の外周に、保護テープ６を螺旋状に巻き付ける。これにより、上記のシールド電線１が製造される。   Next, since the edge part 5a to which the inner surfaces are bonded is in a raised state, the edge part 5a is bent along the wire body surface (the outer surface of the sheet-like member 5). Then, a protective tape 6 is spirally wound around the outer periphery of the sheet-like member 5. Thereby, said shield electric wire 1 is manufactured.

このように本実施形態において、シールド電線１は、複数の電線２，３と、複数の電線２，３の周囲を覆うシールド層を形成する金属箔材４（シールド部材）と、金属箔材４の周囲を覆うシート状部材５と、シート状部材５の周囲に螺旋状に巻き付けられる保護テープ６（保護部材）と、を有している。ここで、シート状部材５は金属箔材４に縦添えされた状態で当該金属箔材４の周囲に巻き付けられており、電線の軸方向に延在する一対の辺縁部５ａが内面同士で接着されている。   Thus, in the present embodiment, the shielded electric wire 1 includes a plurality of electric wires 2 and 3, a metal foil material 4 (shield member) that forms a shield layer covering the periphery of the plurality of electric wires 2 and 3, and the metal foil material 4. The sheet-like member 5 that covers the periphery of the sheet-like member 5 and a protective tape 6 (protective member) that is wound around the sheet-like member 5 in a spiral shape. Here, the sheet-like member 5 is wound around the metal foil material 4 in a state of being vertically attached to the metal foil material 4, and a pair of edge portions 5a extending in the axial direction of the electric wire are between the inner surfaces. It is glued.

かかる構成によれば、金属箔材４の上にシート状部材５を介在させているので気密性を確保することができる。また、このシート状部材５の上から保護テープ６を螺旋状に巻き付けることで、シート状部材５の気密性をよりサポートすることができる。これより、金属箔材４を構成する金属箔層への水の進入を防止することができ、防水性能に優れるシールド電線１を提供することができる。   According to such a configuration, since the sheet-like member 5 is interposed on the metal foil material 4, airtightness can be ensured. Moreover, the airtightness of the sheet-like member 5 can be further supported by winding the protective tape 6 spirally from above the sheet-like member 5. As a result, it is possible to prevent water from entering the metal foil layer constituting the metal foil material 4 and to provide the shielded electric wire 1 having excellent waterproof performance.

また、本実施形態では、シート状部材５を縦添えして当該金属箔材４の周囲に巻き付けるとともに、電線軸方向に延在する一対の辺縁部５ａを内面同士で接着させている。シート状部材５を螺旋状に巻き付けることも可能であるが、本実施形態の構成を採用する場合には、シート状部材５同士の接着領域の距離を短くすることができるので、気密性の向上を図ることができる。また、シート状部材５の内面同士を接着することで、粘着層同士を貼り合わすこととなるので気密性の向上を図ることができる。これにより、防水性能に優れるシールド電線１を提供することができる。   Moreover, in this embodiment, while attaching the sheet-like member 5 vertically and winding it around the said metal foil material 4, a pair of edge part 5a extended in an electric wire axial direction is adhere | attached by inner surfaces. Although it is possible to wind the sheet-like member 5 in a spiral shape, when the configuration of the present embodiment is adopted, the distance between the adhesion regions of the sheet-like members 5 can be shortened, so that the airtightness is improved. Can be achieved. Moreover, since the adhesive layers are bonded together by bonding the inner surfaces of the sheet-like member 5, the airtightness can be improved. Thereby, the shielded electric wire 1 excellent in waterproof performance can be provided.

また、本実施形態において、複数の電線２，３は、それぞれが撚り合わされた複数の被覆電線２と、複数の被覆電線２に縦添えされたドレイン線３とを含んでいる。   In the present embodiment, the plurality of electric wires 2 and 3 include a plurality of covered electric wires 2 that are twisted together, and drain wires 3 that are vertically attached to the plurality of covered electric wires 2.

かかる構成によれば、シールド層として機能する金属箔材４が実効性を有するシールド電線１について、防水性能に優れる構造を実現することができる。   According to such a configuration, a structure having excellent waterproof performance can be realized for the shielded electric wire 1 in which the metal foil material 4 functioning as a shield layer is effective.

（第２の実施形態）
図３は、第２の実施形態に係るシールド電線１を模式的に示す説明図である。以下、第２の実施形態に係るシールド電線１について説明する。この第２の実施形態に係るシールド電線１が、第１の実施形態のそれと相違する点は、シート状部材５における両側の辺縁部同士の接着形態である。以下、第１の実施形態との相違点を中心に説明を行うこととし、共通する構成についての説明は省略する。 (Second Embodiment)
FIG. 3 is an explanatory view schematically showing the shielded electric wire 1 according to the second embodiment. Hereinafter, the shielded electric wire 1 according to the second embodiment will be described. The shielded electric wire 1 according to the second embodiment is different from that of the first embodiment in the bonding form between the edge portions on both sides of the sheet-like member 5. Hereinafter, the description will be focused on differences from the first embodiment, and description of common configurations will be omitted.

図３に示すように、シート状部材５は、両側に位置付けられ各辺縁部５a1，５a2が内面同士で接着されるものであるが、本実施形態では、一方の辺縁部５a1の幅は他方の辺縁部５a2の幅よりも大きく設定されている。そして、他方の辺縁部５a2は、一方の辺縁部５a1に対して幅方向にオフセットした位置にて当該一方の辺縁部５a1と内面同士で接着されている。これにより、一方の辺縁部５a1は、その一部が他方の辺縁部５a2よりも延出した部位を形成し、当該延出した部分は折り返されて、他方の辺縁部５a2の外面と接着されている。   As shown in FIG. 3, the sheet-like member 5 is positioned on both sides and the edge portions 5a1 and 5a2 are bonded to each other on the inner surface. In this embodiment, the width of one edge portion 5a1 is as follows. It is set larger than the width of the other edge portion 5a2. The other edge portion 5a2 is bonded to the inner surface of the one edge portion 5a1 at a position offset in the width direction with respect to the one edge portion 5a1. Thereby, one edge part 5a1 forms the site | part which one part extended rather than the other edge part 5a2, and the said extended part is return | folded, and the outer surface of the other edge part 5a2 is made. It is glued.

相互に接着された両辺縁部５a1，５a2は、シート状部材５の胴体部に沿うように折り曲げられ、その外周に、保護テープ６が螺旋状に巻き付けられることとなる。   Both edge portions 5a1 and 5a2 bonded to each other are bent along the body portion of the sheet-like member 5, and the protective tape 6 is spirally wound around the outer periphery thereof.

このように本実施形態によれば、一対の辺縁部５a1，５a2の内面同士で接着されるとともに、一方の辺縁部５a1の一部が折り返えされて他方の辺縁部５a2の外面に接着されている。このため、接着領域が二箇所に設定されるので、気密性の向上を図ることができる。これにより、防水性能に優れるシールド電線１を提供することができる。   As described above, according to the present embodiment, the inner surfaces of the pair of edge portions 5a1 and 5a2 are bonded to each other, and a part of one edge portion 5a1 is folded back to be the outer surface of the other edge portion 5a2. It is glued to. For this reason, since an adhesion | attachment area | region is set to two places, the improvement of airtightness can be aimed at. Thereby, the shielded electric wire 1 excellent in waterproof performance can be provided.

（第３の実施形態）
図４は、第３の実施形態に係るシールド電線１を模式的に示す説明図である。以下、第３の実施形態に係るシールド電線１について説明する。この第３の実施形態に係るシールド電線１が、第１の実施形態のそれと相違する点は、シート状部材５における両側の辺縁部同士の接着形態である。以下、第１の実施形態との相違点を中心に説明を行うこととし、共通する構成についての説明は省略する。 (Third embodiment)
FIG. 4 is an explanatory view schematically showing the shielded electric wire 1 according to the third embodiment. Hereinafter, the shielded electric wire 1 according to the third embodiment will be described. The shield electric wire 1 according to the third embodiment is different from that of the first embodiment in the bonding form between the side edge portions of the sheet-like member 5. Hereinafter, the description will be focused on differences from the first embodiment, and description of common configurations will be omitted.

図４に示すように、シート状部材５は、両側に位置付けられ各辺縁部５a1，５a2が内面同士で接着されるものであるが、本実施形態では、一方の辺縁部５a1の幅は他方の辺縁部５a2の幅よりも大きく設定されている。そして、他方の辺縁部５a2は、一方の辺縁部５a1に対して幅方向にオフセットした位置にて当該一方の辺縁部５a1と内面同士で接着されている。これにより、一方の辺縁部５a1は、その一部が他方の辺縁部５a2よりも延出した部位を形成している。   As shown in FIG. 4, the sheet-like member 5 is positioned on both sides and the edge portions 5a1 and 5a2 are bonded to each other on the inner surface. In this embodiment, the width of one edge portion 5a1 is as follows. It is set larger than the width of the other edge portion 5a2. The other edge portion 5a2 is bonded to the inner surface of the one edge portion 5a1 at a position offset in the width direction with respect to the one edge portion 5a1. Thereby, one edge part 5a1 forms the site | part which one part extended rather than the other edge part 5a2.

内面同士が相互に接着された両辺縁部５a1，５a2は、シート状部材５の胴体部に沿うように折り曲げられ、一方の辺縁部５a1の延出した部位がシート状部材５の胴体部に接着される。また、このシート状部材５の外周には、保護テープ６が螺旋状に巻き付けられる。   Both edge portions 5a1 and 5a2 of which the inner surfaces are bonded to each other are bent along the body portion of the sheet-like member 5, and the extended portion of one edge portion 5a1 forms the body portion of the sheet-like member 5. Glued. A protective tape 6 is spirally wound around the outer periphery of the sheet-like member 5.

このように本実施形態によれば、一対の辺縁部５a1，５a2の内面同士で接着されるとともに、一方の辺縁部５a1の一部がシート状部材５の胴体部と接着されることとなる。このため、接着領域が二箇所に設定されるので、気密性の向上を図ることができる。これにより、防水性能に優れるシールド電線１を提供することができる。   As described above, according to this embodiment, the inner surfaces of the pair of edge portions 5a1 and 5a2 are bonded to each other, and a part of one edge portion 5a1 is bonded to the body portion of the sheet-like member 5. Become. For this reason, since an adhesion | attachment area | region is set to two places, the improvement of airtightness can be aimed at. Thereby, the shielded electric wire 1 excellent in waterproof performance can be provided.

以上、本実施形態に係るシールド電線について説明したが、本発明はこの実施形態に限定されることなく、その発明の範囲において種々の変更が可能である。   As mentioned above, although the shielded electric wire which concerns on this embodiment was demonstrated, this invention is not limited to this embodiment, A various change is possible in the range of the invention.

１ シールド電線
２ 被覆電線
３ ドレイン線
４ 金属箔材
５ シート状部材
５ａ 辺縁部
６ 保護テープ DESCRIPTION OF SYMBOLS 1 Shield electric wire 2 Covered electric wire 3 Drain wire 4 Metal foil material 5 Sheet-like member 5a Edge part 6 Protection tape

Claims (4)

電線と、
前記電線の周囲を覆うシールド層を形成するシールド部材と、
前記シールド部材の周囲を覆うシート状部材と、
前記シート状部材の周囲に螺旋状に巻き付けられる保護部材と、を有し、
前記シート状部材は前記シールド部材に縦添えされた状態で当該シールド部材の周囲に巻き付けられており、軸方向に延在する一対の辺縁部が内面同士で接合されていることを特徴とするシールド電線。 Electric wires,
A shield member that forms a shield layer covering the periphery of the wire;
A sheet-like member covering the periphery of the shield member;
A protective member spirally wound around the sheet-like member,
The sheet-like member is wound around the shield member in a state of being vertically attached to the shield member, and a pair of edge portions extending in the axial direction are joined at the inner surfaces. Shielded wire. 前記一対の辺縁部は、一方の辺縁部の幅が他方の辺縁部の幅よりも大きく設定されており、前記他方の辺縁部が幅方向にオフセットした位置にて前記一方の辺縁部と内面同士で接合されるとともに、当該一方の辺縁部の延出した部位が折り返されて前記他方の辺縁部の外面と接合されていることを特徴とする請求項１に記載されたシールド電線。   In the pair of side edges, the width of one side edge is set larger than the width of the other side edge, and the one side is at a position where the other side edge is offset in the width direction. The edge portion and the inner surface are joined to each other, and the extended portion of the one edge portion is folded and joined to the outer surface of the other edge portion. Shielded wire. 前記一対の辺縁部は、一方の辺縁部の幅が他方の辺縁部の幅よりも大きく設定されており、前記他方の辺縁部が幅方向にオフセットした位置にて前記一方の辺縁部と内面同士で接合されるとともに、
内面同士が相互に接合された一対の辺縁部は、前記シート状部材の胴体部に沿うように折り曲げられ、前記一方の辺縁部の延出した部位が前記シート状部材の胴体部に接合されることを特徴とする請求項１に記載されたシールド電線。 In the pair of side edges, the width of one side edge is set larger than the width of the other side edge, and the one side is at a position where the other side edge is offset in the width direction. While being joined at the edge and inner surface,
The pair of edge portions where the inner surfaces are joined to each other are bent along the body portion of the sheet-like member, and the extended portion of the one edge portion is joined to the body portion of the sheet-like member. The shielded electric wire according to claim 1, wherein: 前記電線は、それぞれが撚り合わされた複数の被覆電線と、前記複数の被覆電線に縦添えされたドレイン線とを含むことを特徴とする請求項１から３のいずれかに記載されたシールド電線。   The shielded electric wire according to any one of claims 1 to 3, wherein the electric wire includes a plurality of covered electric wires twisted together and a drain wire vertically attached to the plurality of covered electric wires.
JP2014001341A 2014-01-08 2014-01-08 Shielded wire Pending JP2015130276A (en)

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US9666333B2 (en) 2015-05-15 2017-05-30 Yazaki Corporation Shielded electric wire and wire harness using the same
JP2017157412A (en) * 2016-03-01 2017-09-07 矢崎総業株式会社 Shielded wire with water stop function and wire harness
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